Home / 6,872.45-10,309.36-1,942.13

Finding the Fourth Proportional to 6,872.45, 10,309.36 and 1,942.13

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Solution

The fourth proportional to 6,872.45, 10,309.36 and 1,942.13 is: 2,913.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,872.45 : 10,309.36 = 1,942.13 : x
  2. Step 2: Convert to fraction form
    6,872.45/10,309.36 = 1,942.13/x
  3. Step 3: Cross multiply
    6,872.45x = 10,309.36 × 1,942.13
  4. Step 4: Simplify right side
    6,872.45x = 20,022,107.63
  5. Step 5: Solve for x
    x = 20,022,107.63/6,872.45
  6. Step 6: Final answer
    x = 2,913.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.